How to control BSV using Business unit in SLA?

Summary: How to control BSV using Business unit in SLA?

• Content (required): We have created a SLA rule with mapping set consists of "Organization Identifier"(Payables). Each Org ID is mapped to a BSV at mapping set(BU1 - xxxx, BU2 - yyyy) then the same is associated to a Account Rule -> Subledger Journal Entry Rule sets(Liability, Item Expense). But when we accounted a invoice with BU1 with BSV value(yyyy) , instead of system automatically update the BSV value to (xxxx) its throwing an error : A corresponding rule wasn't found in the intercompany balancing rules setup for defining a ledger intercompany account.